Function and Operator Reference
| Name | Description |
|---|---|
| + | Addition operator |
| / | Division operator |
| * | Multiplication operator |
| % | Modulo operator. Returns the remainder of N divided by M |
| - | Subtraction operator |
| != | Not equals |
| < | Less than |
| <= | Less than or equal |
| <=> | NULL-safe equal |
| = | Equal |
| > | Greater than |
| >= | Greater than or equal |
| & | Bitwise AND |
| << | Shift left |
| >> | Shift right |
| ^ | Bitwise XOR |
| ! | Logical NOT |
| && | Logical AND |
| XOR | Logical XOR |
|| |
Logical OR |
| |
Bitwise OR |
| := | Assignment operator |
| = | Assignment and comparison operator |
| ~ | Bitwise NOT |
| ABS | Returns an absolute value |
| ACOS | Returns an arc cosine |
| ADD_MONTHS | Add months to a date |
| ADDDATE | Add days or another interval to a date |
| ADDTIME | Adds a time to a time or datetime |
| AES_DECRYPT | Decryption data encrypted with AES_ENCRYPT |
| AES_ENCRYPT | Encrypts a string with the AES algorithm |
| AREA | Synonym for ST_AREA |
| AsBinary | Synonym for ST_AsBinary |
| ASCII | Numeric ASCII value of leftmost character |
| ASIN | Returns the arc sine |
| AsText | Synonym for ST_AsText |
| AsWKB | Synonym for ST_AsBinary |
| AsWKT | Synonym for ST_AsText |
| ATAN | Returns the arc tangent |
| ATAN2 | Returns the arc tangent of two variables |
| AVG | Returns the average value |
| BENCHMARK | Executes an expression repeatedly |
| BETWEEN AND | True if expression between two values |
| BIN | Returns binary value |
| BINARY OPERATOR | Casts to a binary string |
| BINLOG_GTID_POS | Returns a string representation of the corresponding GTID position |
| BIT_AND | Bitwise AND |
| BIT_COUNT | Returns the number of set bits |
| BIT_LENGTH | Returns the length of a string in bits |
| BIT_OR | Bitwise OR |
| BIT_XOR | Bitwise XOR |
| BOUNDARY | Synonym for ST_BOUNDARY |
| BUFFER | Synonym for ST_BUFFER |
| CASE | Returns the result where value=compare_value or for the first condition that is true |
| CAST | Casts a value of one type to another type |
| CEIL | Synonym for CEILING() |
| CEILING | Returns the smallest integer not less than X |
| CENTROID | Synonym for ST_CENTROID |
| CHAR Function | Returns string based on the integer values for the individual characters |
| CHARACTER_LENGTH | Synonym for CHAR_LENGTH() |
| CHAR_LENGTH | Length of the string in characters |
| CHARSET | Returns the character set |
| CHR | Returns a string consisting of the character given by the code values of the integer |
| COALESCE | Returns the first non-NULL parameter |
| COERCIBILITY | Returns the collation coercibility value |
| COLLATION | Collation of the string argument |
| COLUMN_ADD | Adds or updates dynamic columns |
| COLUMN_CHECK | Checks if a dynamic column blob is valid |
| COLUMN_CREATE | Returns a dynamic columns blob |
| COLUMN_DELETE | Deletes a dynamic column |
| COLUMN_EXISTS | Checks is a column exists |
| COLUMN_GET | Gets a dynamic column value by name |
| COLUMN_JSON | Returns a JSON representation of dynamic column blob data |
| COLUMN_LIST | Returns comma-separated list |
| COMPRESS | Returns a binary, compressed string |
| CONCAT | Returns concatenated string |
| CONCAT_WS | Concatenate with separator |
| CONNECTION_ID | Connection thread ID |
| CONTAINS | Whether one geometry contains another |
| CONVERT | Convert a value from one type to another type |
| CONV | Converts numbers between different number bases |
| CONVERT_TZ | Converts a datetime from on time zone to another |
| CONVEXHULL | Synonym for ST_CONVEXHULL |
| COS | Returns the cosine |
| COT | Returns the cotangent |
| COUNT | Returns count of non-null values |
| COUNT DISTINCT | Returns count of number of different non-NULL values |
| CRC32 | Computes a cyclic redundancy check value |
| CROSSES | Whether two geometries spatially cross |
| CUME_DIST | Window function that returns the cumulative distribution of a given row |
| CURDATE | Returns the current date |
| CURRENT_DATE | Synonym for CURDATE() |
| CURRENT_ROLE | Current role name |
| CURRENT_TIME | Synonym for CURTIME() |
| CURRENT_TIMESTAMP | Synonym for NOW() |
| CURRENT_USER | Username/host that authenicated the current client |
| CURTIME | Returns the current time |
| DATABASE | Current default database |
| DATE FUNCTION | Extracts the date portion of a datetime |
| DATEDIFF | Difference in days between two date/time values |
| DATE_ADD | Date arithmetic - addition |
| DATE_FORMAT | Formats the date value according to the format string |
| DATE_SUB | Date arithmetic - subtraction |
| DAY | Synonym for DAYOFMONTH() |
| DAYNAME | Return the name of the weekday |
| DAYOFMONTH | Returns the day of the month |
| DAYOFWEEK | Returns the day of the week index |
| DAYOFYEAR | Returns the day of the year |
| DECODE | Decrypts a string encoded with ENCODE() |
| DECODE_HISTOGRAM | Returns comma separated numerics corresponding to a probability distribution represented by a histogram |
| DEFAULT | Returns column default |
| DEGREES | Converts from radians to degrees |
| DENSE_RANK | Rank of a given row with identical values receiving the same result, no skipping |
| DES_DECRYPT | Decrypts a string encrypted with DES_ENCRYPT() |
| DES_ENCRYPT | Encrypts a string using the Triple-DES algorithm |
| DIMENSION | Synonym for ST_DIMENSION |
| DISJOINT | Whether the two elements do not intersect |
| DIV | Integer division |
| ELT | Returns the N'th element from a set of strings |
| ENCODE | Encrypts a string |
| ENCRYPT | Encrypts a string with Unix crypt() |
| ENDPOINT | Synonym for ST_ENDPOINT |
| ENVELOPE | Synonym for ST_ENVELOPE |
| EQUALS | Indicates whether two geometries are spatially equal |
| EXP | e raised to the power of the argument |
| EXPORT_SET | Returns an on string for every bit set, an off string for every bit not set |
| ExteriorRing | Synonym for ST_ExteriorRing |
| EXTRACT | Extracts a portion of the date |
| EXTRACTVALUE | Returns the text of the first text node matched by the XPath expression |
| FIELD | Returns the index position of a string in a list |
| FIND_IN_SET | Returns the position of a string in a set of strings |
| FLOOR | Largest integer value not greater than the argument |
| FORMAT | Formats a number |
| FOUND_ROWS | Number of (potentially) returned rows |
| FROM_BASE64 | Given a base-64 encoded string, returns the decoded result as a binary string |
| FROM_DAYS | Returns a date given a day |
| FROM_UNIXTIME | Returns a datetime from a Unix timestamp |
| GeomCollFromText | Synonym for ST_GeomCollFromText |
| GeomCollFromWKB | Synonym for ST_GeomCollFromWKB |
| GeometryCollectionFromText | Synonym for ST_GeomCollFromText |
| GeometryCollectionFromWKB | Synonym for ST_GeomCollFromWKB |
| GeometryFromText | Synonym for ST_GeomFromText |
| GeometryFromWKB | Synonym for ST_GeomFromWKB |
| GeomFromText | Synonym for ST_GeomFromText |
| GeomFromWKB | Synonym for ST_GeomFromWKB |
| GeometryN | Synonym for ST_GeometryN |
| GEOMETRYCOLLECTION | Constructs a WKB GeometryCollection |
| GeometryType | Synonym for ST_GeometryType |
| GET_FORMAT | Returns a format string |
| GET_LOCK | Obtain LOCK |
| GLENGTH | Length of a LineString value |
| GREATEST | Returns the largest argument |
| GROUP_CONCAT | Returns string with concatenated values from a group |
| HEX | Returns hexadecimal value |
| HOUR | Returns the hour |
| IF | If expr1 is TRUE, returns expr2; otherwise returns expr3 |
| IFNULL | Check whether an expression is NULL |
| IN | True if expression equals any of the values in the list |
| INTERVAL | Index of the argument that is less than the first argument |
| INET6_ATON | Given an IPv6 or IPv4 network address, returns a VARBINARY numeric value |
| INET6_NTOA | Given an IPv6 or IPv4 network address, returns the address as a nonbinary string |
| INET_ATON | Returns numeric value of IPv4 address |
| INET_NTOA | Returns dotted-quad representation of IPv4 address |
| INSERT Function | Replaces a part of a string with another string |
| INSTR | Returns the position of a string withing a string |
| InteriorRingN | Synonym for ST_InteriorRingN |
| INTERSECTS | Indicates whether two geometries spatially intersect |
| IS | Tests whether a boolean is TRUE, FALSE, or UNKNOWN |
| IsClosed | Synonym for ST_IsClosed |
| IsEmpty | Synonym for ST_IsEmpty |
| IS_FREE_LOCK | Checks whether lock is free to use |
| IS_IPV4 | Whether or not an expression is a valid IPv4 address |
| IS_IPV4_COMPAT | Whether or not an IPv6 address is IPv4-compatible |
| IS_IPV4_MAPPED | Whether an IPv6 address is a valid IPv4-mapped address |
| IS_IPV6 | Whether or not an expression is a valid IPv6 address |
| IS NOT | Tests whether a boolean value is not TRUE, FALSE, or UNKNOWN |
| IS NOT NULL | Tests whether a value is not NULL |
| IS NULL | Tests whether a value is NULL |
| ISNULL | Checks if an expression is NULL |
| IsRing | Synonym for ST_IsRing |
| IsSimple | Synonym for ST_IsSimple |
| IS_USED_LOCK | Check if lock is in use |
| JSON_ARRAY | Returns a JSON array containing the listed values |
| JSON_ARRAY_APPEND | Appends values to the end of the given arrays within a JSON document |
| JSON_ARRAY_INSERT | Inserts a value into a JSON document |
| JSON_COMPACT | Removes all unnecessary spaces so the json document is as short as possible |
| JSON_CONTAINS | Whether a value is found in a given JSON document or at a specified path within the document |
| JSON_CONTAINS_PATH | Indicates whether the given JSON document contains data at the specified path or paths |
| JSON_DEPTH | Maximum depth of a JSON document |
| JSON_DETAILED | Represents JSON in the most understandable way emphasizing nested structures |
| JSON_EQUALS | Check for equality between JSON objects. |
| JSON_EXISTS | Determines whether a specified JSON value exists in the given data |
| JSON_EXTRACT | Extracts data from a JSON document |
| JSON_INSERT | Inserts data into a JSON document |
| JSON_KEYS | Returns keys from top-level value of a JSON object or top-level keys from the path |
| JSON_LENGTH | Returns the length of a JSON document, or the length of a value within the document |
| JSON_LOOSE | Adds spaces to a JSON document to make it look more readable |
| JSON_MERGE | Merges the given JSON documents |
| JSON_NORMALIZE | Recursively sorts keys and removes spaces, allowing comparison of json documents for equality. |
| JSON_OBJECT | Returns a JSON object containing the given key/value pairs |
| JSON_QUERY | Given a JSON document, returns an object or array specified by the path |
| JSON_QUOTE | Quotes a string as a JSON value |
| JSON_REMOVE | Removes data from a JSON document |
| JSON_REPLACE | Replaces existing values in a JSON document |
| JSON_SEARCH | Returns the path to the given string within a JSON document |
| JSON_SET | Updates or inserts data into a JSON document |
| JSON_TABLE | Returns a representation of a JSON document as a relational table |
| JSON_TYPE | Returns the type of a JSON value |
| JSON_UNQUOTE | Unquotes a JSON value, returning a string |
| JSON_VALID | Whether a value is a valid JSON document or not |
| JSON_VALUE | Given a JSON document, returns the specified scalar |
| LAST_DAY | Returns the last day of the month |
| LAST_INSERT_ID | Last inserted autoinc value |
| LAST_VALUE | Returns the last value in a list |
| LASTVAL | Get last value generated from a sequence |
| LCASE | Synonym for [LOWER() |
| LEAST | Returns the smallest argument |
| LEFT | Returns the leftmost characters from a string |
| LENGTH | Length of the string in bytes |
| LIKE | Whether expression matches a pattern |
| LineFromText | Synonym for ST_LineFromText |
| LineFromWKB | Synonym for ST_LineFromWKB |
| LINESTRING | Constructs a WKB LineString value from a number of WKB Point arguments |
| LineStringFromText | Synonym for ST_LineFromText |
| LineStringFromWKB | Synonym for ST_LineFromWKB |
| LN | Returns natural logarithm |
| LOAD_FILE | Returns file contents as a string |
| LOCALTIME | Synonym for NOW() |
| LOCALTIMESTAMP | Synonym for NOW() |
| LOCATE | Returns the position of a substring in a string |
| LOG | Returns the natural logarithm |
| LOG10 | Returns the base-10 logarithm |
| LOG2 | Returns the base-2 logarithm |
| LOWER | Returns a string with all characters changed to lowercase |
| LPAD | Returns the string left-padded with another string to a given length |
| LTRIM | Returns the string with leading space characters removed |
| MAKE_SET | Make a set of strings that matches a bitmask |
| MAKEDATE | Returns a date given a year and day |
| MAKETIME | Returns a time |
| MASTER_GTID_WAIT | Wait until slave reaches the GTID position |
| MASTER_POS_WAIT | Blocks until the slave has applied all specified updates |
| MATCH AGAINST | Perform a fulltext search on a fulltext index |
| MAX | Returns the maximum value |
| MBRContains | Indicates one Minimum Bounding Rectangle contains another |
| MBRDisjoint | Indicates whether the Minimum Bounding Rectangles of two geometries are disjoint |
| MBREqual | Whether the Minimum Bounding Rectangles of two geometries are the same. |
| MBRIntersects | Indicates whether the Minimum Bounding Rectangles of the two geometries intersect |
| MBROverlaps | Whether the Minimum Bounding Rectangles of two geometries overlap. |
| MBRTouches | Whether the Minimum Bounding Rectangles of two geometries touch. |
| MBRWithin | Indicates whether one Minimum Bounding Rectangle is within another |
| MD5 | MD5 checksum |
| MEDIAN | Window function that returns the median value of a range of values |
| MICROSECOND | Returns microseconds from a date or datetime |
| MID | Synonym for SUBSTRING(str,pos,len) |
| MIN | Returns the minimum value |
| MINUTE | Returns a minute from 0 to 59 |
| MLineFromText | Constructs MULTILINESTRING using its WKT representation and SRID |
| MLineFromWKB | Constructs a MULTILINESTRING |
| MOD | Modulo operation. Remainder of N divided by M |
| MONTH | Returns a month from 1 to 12 |
| MONTHNAME | Returns the full name of the month |
| MPointFromText | Constructs a MULTIPOINT value using its WKT and SRID |
| MPointFromWKB | Constructs a MULTIPOINT value using its WKB representation and SRID |
| MPolyFromText | Constructs a MULTIPOLYGON value |
| MPolyFromWKB | Constructs a MULTIPOLYGON value using its WKB representation and SRID |
| MultiLineStringFromText | Synonym for MLineFromText |
| MultiLineStringFromWKB | A synonym for MLineFromWKB |
| MULTIPOINT | Constructs a WKB MultiPoint value |
| MultiPointFromText | Synonym for MPointFromText |
| MultiPointFromWKB | Synonym for MPointFromWKB |
| MULTIPOLYGON | Constructs a WKB MultiPolygon |
| MultiPolygonFromText | Synonym for MPolyFromText |
| MultiPolygonFromWKB | Synonym for MPolyFromWKB |
| MULTILINESTRING | Constructs a MultiLineString value |
| NAME_CONST | Returns the given value |
| NATURAL_SORT_KEY | Sorting that is more more similar to natural human sorting |
| NOT LIKE | Same as NOT(expr LIKE pat [ESCAPE 'escape_char']) |
| NOT REGEXP | Same as NOT (expr REGEXP pat) |
| NULLIF | Returns NULL if expr1 = expr2 |
| NEXTVAL | Generate next value for sequence |
| NOT BETWEEN | Same as NOT (expr BETWEEN min AND max) |
| NOT IN | Same as NOT (expr IN (value,...)) |
| NOW | Returns the current date and time |
| NTILE | Returns an integer indicating which group a given row falls into |
| NumGeometries | Synonym for ST_NumGeometries |
| NumInteriorRings | Synonym for NumInteriorRings |
| NumPoints | Synonym for ST_NumPoints |
| OCT | Returns octal value |
| OCTET_LENGTH | Synonym for LENGTH() |
| OLD_PASSWORD | Pre MySQL 4.1 password implementation |
| ORD | Return ASCII or character code |
| OVERLAPS | Indicates whether two elements spatially overlap |
| PASSWORD | Calculates a password string |
| PERCENT_RANK | Window function that returns the relative percent rank of a given row |
| PERCENTILE_CONT | Returns a value which corresponds to the given fraction in the sort order. |
| PERCENTILE_DISC | Returns the first value in the set whose ordered position is the same or more than the specified fraction. |
| PERIOD_ADD | Add months to a period |
| PERIOD_DIFF | Number of months between two periods |
| PI | Returns the value of π (pi) |
| POINT | Constructs a WKB Point |
| PointFromText | Synonym for ST_PointFromText |
| PointFromWKB | Synonym for PointFromWKB |
| PointN | Synonym for PointN |
| PointOnSurface | Synonym for ST_PointOnSurface |
| POLYGON | Constructs a WKB Polygon value from a number of WKB LineString arguments |
| PolyFromText | Synonym for ST_PolyFromText |
| PolyFromWKB | Synonym for ST_PolyFromWKB |
| PolygonFromText | Synonym for ST_PolyFromText |
| PolygonFromWKB | Synonym for ST_PolyFromWKB |
| POSITION | Returns the position of a substring in a string |
| POW | Returns X raised to the power of Y |
| POWER | Synonym for POW() |
| QUARTER | Returns year quarter from 1 to 4 |
| QUOTE | Returns quoted, properly escaped string |
| RADIANS | Converts from degrees to radians |
| RAND | Random floating-point value |
| RANK | Rank of a given row with identical values receiving the same result |
| REGEXP | Performs pattern matching |
| REGEXP_INSTR | Position of the first appearance of a regex |
| REGEXP_REPLACE | Replaces all occurrences of a pattern |
| REGEXP_SUBSTR | Returns the matching part of a string |
| RELEASE_LOCK | Releases lock obtained with GET_LOCK() |
| REPEAT Function | Returns a string repeated a number of times |
| REPLACE Function | Replace occurrences of a string |
| REVERSE | Reverses the order of a string |
| RIGHT | Returns the rightmost N characters from a string |
| RLIKE | Synonym for REGEXP() |
| RPAD | Returns the string right-padded with another string to a given length |
| ROUND | Rounds a number |
| ROW_COUNT | Number of rows affected by previous statement |
| ROW_NUMBER | Row number of a given row with identical values receiving a different result |
| RTRIM | Returns the string with trailing space characters removed |
| SCHEMA | Synonym for DATABASE() |
| SECOND | Returns the second of a time |
| SEC_TO_TIME | Converts a second to a time |
| SETVAL | Set the next value to be returned by a sequence |
| SESSION_USER | Synonym for USER() |
| SHA | Synonym for SHA1() |
| SHA1 | Calculates an SHA-1 checksum |
| SHA2 | Calculates an SHA-2 checksum |
| SIGN | Returns 1, 0 or -1 |
| SIN | Returns the sine |
| SLEEP | Pauses for the given number of seconds |
| SOUNDEX | Returns a string based on how the string sounds |
| SOUNDS LIKE | SOUNDEX(expr1) = SOUNDEX(expr2) |
| SPACE | Returns a string of space characters |
| SPIDER_BG_DIRECT_SQL | Background SQL execution |
| SPIDER_COPY_TABLES | Copy table data |
| SPIDER_DIRECT_SQL | Execute SQL on the remote server |
| SPIDER_FLUSH_TABLE_MON_CACHE | Refreshing Spider monitoring server information |
| SQRT | Square root |
| SRID | Synonym for ST_SRID |
| ST_AREA | Area of a Polygon |
| ST_AsBinary | Converts a value to its WKB representation |
| ST_AsText | Converts a value to its WKT-Definition |
| ST_AsWKB | Synonym for ST_AsBinary |
| ST_ASWKT | Synonym for ST_ASTEXT() |
| ST_BOUNDARY | Returns a geometry that is the closure of a combinatorial boundary |
| ST_BUFFER | A new geometry with a buffer added to the original geometry |
| ST_CENTROID | The mathematical centroid (geometric center) for a MultiPolygon |
| ST_CONTAINS | Whether one geometry is contained by another |
| ST_CONVEXHULL | The minimum convex geometry enclosing all geometries within the set |
| ST_CROSSES | Whether two geometries spatially cross |
| ST_DIFFERENCE | Point set difference |
| ST_DIMENSION | Inherent dimension of a geometry value |
| ST_DISJOINT | Whether one geometry is spatially disjoint from another |
| ST_DISTANCE | The distance between two geometries |
| ST_DISTANCE_SPHERE | The spherical distance between two geometries |
| ST_ENDPOINT | Returns the endpoint of a LineString |
| ST_ENVELOPE | Returns the Minimum Bounding Rectangle for a geometry value |
| ST_EQUALS | Whether two geometries are spatoially equal |
| ST_ExteriorRing | Returns the exterior ring of a Polygon as a LineString |
| ST_GeomCollFromText | Constructs a GEOMETRYCOLLECTION value |
| ST_GeomCollFromWKB | Constructs a GEOMETRYCOLLECTION value from a WKB |
| ST_GeometryCollectionFromText | Synonym for ST_GeomCollFromText |
| ST_GeometryCollectionFromWKB | Synonym for ST_GeomCollFromWKB |
| ST_GeometryFromText | Synonym for ST_GeomFromText |
| ST_GeometryFromWKB | Synonym for ST_GeomFromWKB |
| ST_GEOMETRYN | Returns the N-th geometry in a GeometryCollection |
| ST_GEOMETRYTYPE | Returns name of the geometry type of which a given geometry instance is a member |
| ST_GeomFromText | Constructs a geometry value using its WKT and SRID |
| ST_GeomFromWKB | Constructs a geometry value using its WKB representation and SRID |
| ST_InteriorRingN | Returns the N-th interior ring for a Polygon |
| ST_INTERSECTION | The intersection, or shared portion, of two geometries |
| ST_INTERSECTS | Whether two geometries spatially intersect |
| ST_ISCLOSED | Returns true if a given LINESTRING's start and end points are the same |
| ST_ISEMPTY | Indicated validity of geometry value |
| ST_IsRing | Returns true if a given LINESTRING is both ST_IsClosed and ST_IsSimple |
| ST_IsSimple | Returns true if the given Geometry has no anomalous geometric points |
| ST_LENGTH | Length of a LineString value |
| ST_LineFromText | Creates a linestring value |
| ST_LineFromWKB | Constructs a LINESTRING using its WKB and SRID |
| ST_LineStringFromText | Synonym for ST_LineFromText |
| ST_LineStringFromWKB | Synonym for ST_LineFromWKB |
| ST_NUMGEOMETRIES | Number of geometries in a GeometryCollection |
| ST_NumInteriorRings | Number of interior rings in a Polygon |
| ST_NUMPOINTS | Returns the number of Point objects in a LineString |
| ST_OVERLAPS | Whether two geometries overlap |
| ST_PointFromText | Constructs a POINT value |
| ST_PointFromWKB | Constructs POINT using its WKB and SRID |
| ST_POINTN | Returns the N-th Point in the LineString |
| ST_POINTONSURFACE | Returns a POINT guaranteed to intersect a surface |
| ST_PolyFromText | Constructs a POLYGON value |
| ST_PolyFromWKB | Constructs POLYGON value using its WKB representation and SRID |
| ST_PolygonFromText | Synonym for ST_PolyFromText |
| ST_PolygonFromWKB | Synonym for ST_PolyFromWKB |
| ST_RELATE | Returns true if two geometries are related |
| ST_SRID | Returns a Spatial Reference System ID |
| ST_STARTPOINT | Returns the start point of a LineString |
| ST_SYMDIFFERENCE | Portions of two geometries that don't intersect |
| ST_TOUCHES | Whether one geometry g1 spatially touches another |
| ST_UNION | Union of two geometries |
| ST_WITHIN | Whether one geometry is within another |
| ST_X | X-coordinate value for a point |
| ST_Y | Y-coordinate for a point |
| STARTPOINT | Synonym for ST_StartPoint |
| STD | Population standard deviation |
| STDDEV | Population standard deviation |
| STDDEV_POP | Returns the population standard deviation |
| STDDEV_SAMP | Standard deviation |
| STR_TO_DATE | Converts a string to date |
| STRCMP | Compares two strings in sort order |
| SUBDATE | Subtract a date unit or number of days |
| SUBSTR | Returns a substring from string starting at a given position |
| SUBSTRING | Returns a substring from string starting at a given position |
| SUBSTRING_INDEX | Returns the substring from string before count occurrences of a delimiter |
| SUBTIME | Subtracts a time from a date/time |
| SUM | Sum total |
| SYS_GUID | Generates a globally unique identifier |
| SYSDATE | Returns the current date and time |
| SYSTEM_USER | Synonym for USER() |
| TAN | Returns the tangent |
| TIME function | Extracts the time |
| TIMEDIFF | Returns the difference between two date/times |
| TIMESTAMP FUNCTION | Return the datetime, or add a time to a date/time |
| TIMESTAMPADD | Add interval to a date or datetime |
| TIMESTAMPDIFF | Difference between two datetimes |
| TIME_FORMAT | Formats the time value according to the format string |
| TIME_TO_SEC | Returns the time argument, converted to seconds |
| TO_BASE64 | Converts a string to its base-64 encoded form |
| TO_CHAR | Converts a date/time type to a char |
| TO_DAYS | Number of days since year 0 |
| TO_SECONDS | Number of seconds since year 0 |
| TOUCHES | Whether two geometries spatially touch |
| TRIM | Returns a string with all given prefixes or suffixes removed |
| TRUNCATE | Truncates X to D decimal places |
| UCASE | Synonym for UPPER]]() |
| UNHEX | Interprets pairs of hex digits as a number and converts to the character represented by the number |
| UNCOMPRESS | Uncompresses string compressed with COMPRESS() |
| UNCOMPRESSED_LENGTH | Returns length of a string before being compressed with COMPRESS() |
| UNIX_TIMESTAMP | Returns a Unix timestamp |
| UPDATEXML | Replace XML |
| UPPER | Changes string to uppercase |
| USER | Current user/host |
| UTC_DATE | Returns the current UTC date |
| UTC_TIME | Returns the current UTC time |
| UTC_TIMESTAMP | Returns the current UTC date and time |
| UUID | Returns a Universal Unique Identifier |
| UUID_SHORT | Return short universal identifier |
| VALUES or VALUE | Refer to columns in INSERT ... ON DUPLICATE KEY UPDATE |
| VAR_POP | Population standard variance |
| VAR_SAMP | Returns the sample variance |
| VARIANCE | Population standard variance |
| VERSION | MariaDB server version |
| WEEK | Returns the week number |
| WEEKDAY | Returns the weekday index |
| WEEKOFYEAR | Returns the calendar week of the date as a number in the range from 1 to 53 |
| WEIGHT_STRING | Weight of the input string |
| WITHIN | Indicate whether a geographic element is spacially within another |
| WSREP_LAST_SEEN_GTID | Returns the Global Transaction ID of the most recent write transaction observed by the client. |
| WSREP_LAST_WRITTEN_GTID | Returns the Global Transaction ID of the most recent write transaction performed by the client. |
| WSREP_SYNC_WAIT_UPTO_GTID | Blocks the client until the transaction specified by the given Global Transaction ID is applied and committed by the node |
| X | Synonym for ST_X |
| Y | Synonym for ST_Y |
| YEAR | Returns the year for the given date |
| YEARWEEK | Returns year and week for a date |
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